YOKOHAMA, Japan—Nissan Motor Co. cut its full-year profit outlook citing weaker than expected results in some markets and it reshuffled top management after posting a 19% drop in second quarter operating profit.

The No. 2 Japanese auto maker pared its net-profit forecast for the year ending in March by 15% to 355 billion yen ($3.59 billion), blaming poor sales in markets including Russia and Brazil and the cost of a recall to fix...